@booklet {4813,
	title = {SHAFIQULLAH, M., TUPPER, W.M. and COLE, T.J.S. 1968. K-Ar ages on rocks from the crater at Brent, Ontario. Earth and Planetary Science Letters, 5: 148-52.},
	year = {1968},
	note = {SHAFIQULLAH, M., TUPPER, W.M. and COLE, T.J.S. 1968. K-Ar ages on rocks from the crater at Brent, Ontario. Earth and Planetary Science Letters, 5: 148-52.}
}
